How much does ongoing damage add to the average damage when creating a monster?Keep in mind that you can be a bit sloppy with ongoing because of two factors: 1) There's a lot of potential save granting powers and effects, especially if they have access to a leader which can stop the damage before it hits even once, and 2) Once they are already suffering from ongoing damage, hitting them again with the same ongoing damage won't do anything until they get rid of it, which means subsequent strikes against the same target will potentially lose that extra damage.

How do I create a balanced “Glass Cannon” monster?That's 36 damage max with an average damage of 26. It will really hurt but if you spread out who you hit you should be safe testing it out with your group. I know with my (admittedly striker heavy) group, if they decide something is a threat it's usually down or heavily disabled within a round or two

Jan12

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Why do Ability Score method names imply difficulty inversely?Do you mean in how to make the Heroic/Epic have more Heroic/Epic threats? The reason you're not seeing much talk about any official rules on it is because that comes down to what the DM wants to throw at the party. When using generation methods that favor the players the DM is able to throw challenges that are "above" what they should be able to handle at a given level. You're probably not going to see much on official tweaks to looking at CR because CR is already a fairly loose guideline (see rpg.stackexchange.com/questions/19709/…).